Factorial of 561 (561!)

The factorial of 561, written as 561!, is the product of all positive integers less than or equal to 561.

What Is the Formula to Calculate 561 Factorial?

The formula for calculating 561 factorial (561!) is:

561! = 561 × 560 × 559 × 558 × 557 × 556 × 555 × 554 × 553 × 552 × 551 × 550 × 549 × 548 × 547 × 546 × 545 × 544 × 543 × 542 × 541 × 540 × 539 × 538 × 537 × 536 × 535 × 534 × 533 × 532 × 531 × 530 × 529 × 528 × 527 × 526 × 525 × 524 × 523 × 522 × 521 × 520 × 519 × 518 × 517 × 516 × 515 × 514 × 513 × 512 × 511 × 510 × 509 × 508 × 507 × 506 × 505 × 504 × 503 × 502 × 501 × 500 × 499 × 498 × 497 × 496 × 495 × 494 × 493 × 492 × 491 × 490 × 489 × 488 × 487 × 486 × 485 × 484 × 483 × 482 × 481 × 480 × 479 × 478 × 477 × 476 × 475 × 474 × 473 × 472 × 471 × 470 × 469 × 468 × 467 × 466 × 465 × 464 × 463 × 462 × 461 × 460 × 459 × 458 × 457 × 456 × 455 × 454 × 453 × 452 × 451 × 450 × 449 × 448 × 447 × 446 × 445 × 444 × 443 × 442 × 441 × 440 × 439 × 438 × 437 × 436 × 435 × 434 × 433 × 432 × 431 × 430 × 429 × 428 × 427 × 426 × 425 × 424 × 423 × 422 × 421 × 420 × 419 × 418 × 417 × 416 × 415 × 414 × 413 × 412 × 411 × 410 × 409 × 408 × 407 × 406 × 405 × 404 × 403 × 402 × 401 × 400 × 399 × 398 × 397 × 396 × 395 × 394 × 393 × 392 × 391 × 390 × 389 × 388 × 387 × 386 × 385 × 384 × 383 × 382 × 381 × 380 × 379 × 378 × 377 × 376 × 375 × 374 × 373 × 372 × 371 × 370 × 369 × 368 × 367 × 366 × 365 × 364 × 363 × 362 × 361 × 360 × 359 × 358 × 357 × 356 × 355 × 354 × 353 × 352 × 351 × 350 × 349 × 348 × 347 × 346 × 345 × 344 × 343 × 342 × 341 × 340 × 339 × 338 × 337 × 336 × 335 × 334 × 333 × 332 × 331 × 330 × 329 × 328 × 327 × 326 × 325 × 324 × 323 × 322 × 321 × 320 × 319 × 318 × 317 × 316 × 315 × 314 × 313 × 312 × 311 × 310 × 309 × 308 × 307 × 306 × 305 × 304 × 303 × 302 × 301 × 300 × 299 × 298 × 297 × 296 × 295 × 294 × 293 × 292 × 291 × 290 × 289 × 288 × 287 × 286 × 285 × 284 × 283 × 282 × 281 × 280 × 279 × 278 × 277 × 276 × 275 × 274 × 273 × 272 × 271 × 270 × 269 × 268 × 267 × 266 × 265 × 264 × 263 × 262 × 261 × 260 × 259 × 258 × 257 × 256 × 255 × 254 × 253 × 252 × 251 × 250 × 249 × 248 × 247 × 246 × 245 × 244 × 243 × 242 × 241 × 240 × 239 × 238 × 237 × 236 × 235 × 234 × 233 × 232 × 231 × 230 × 229 × 228 × 227 × 226 × 225 × 224 × 223 × 222 × 221 × 220 × 219 × 218 × 217 × 216 × 215 × 214 × 213 × 212 × 211 × 210 × 209 × 208 × 207 × 206 × 205 × 204 × 203 × 202 × 201 × 200 × 199 × 198 × 197 × 196 × 195 × 194 × 193 × 192 × 191 × 190 × 189 × 188 × 187 × 186 × 185 × 184 × 183 × 182 × 181 × 180 × 179 × 178 × 177 × 176 × 175 × 174 × 173 × 172 × 171 × 170 × 169 × 168 × 167 × 166 × 165 × 164 × 163 × 162 × 161 × 160 × 159 × 158 × 157 × 156 × 155 × 154 × 153 × 152 × 151 × 150 × 149 × 148 × 147 × 146 × 145 × 144 × 143 × 142 × 141 × 140 × 139 × 138 × 137 × 136 × 135 × 134 × 133 × 132 × 131 × 130 × 129 × 128 × 127 × 126 × 125 × 124 × 123 × 122 × 121 × 120 × 119 × 118 × 117 × 116 × 115 × 114 × 113 × 112 × 111 × 110 × 109 × 108 × 107 × 106 × 105 × 104 × 103 × 102 × 101 × 100 × 99 × 98 × 97 × 96 × 95 × 94 × 93 × 92 × 91 × 90 × 89 × 88 × 87 × 86 × 85 × 84 × 83 × 82 × 81 × 80 × 79 × 78 × 77 × 76 × 75 × 74 × 73 × 72 × 71 × 70 × 69 × 68 × 67 × 66 × 65 × 64 × 63 × 62 × 61 × 60 × 59 × 58 × 57 × 56 × 55 × 54 × 53 × 52 × 51 × 50 × 49 × 48 × 47 × 46 × 45 × 44 × 43 × 42 × 41 × 40 × 39 × 38 × 37 × 36 × 35 × 34 × 33 × 32 × 31 × 30 × 29 × 28 × 27 × 26 × 25 × 24 × 23 × 22 × 21 × 20 × 19 × 18 × 17 × 16 × 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = inf

How Many Digits in 561 Factorial?

The number 561! has 3 digits.

Factorial Table From 1! to 561!

Frequently Asked Questions

• What is 561!?

  It's the product of all positive integers from 1 to 561. Answer: inf.

• Is factorial defined for negative numbers?

  No. Factorials are only defined for non-negative integers (0 and up).

• What is 0!?

  By definition, the factorial of 0 is 1.

Try Another Factorial

Random Factorial Examples

• Factorial of 38
• Factorial of 9
• Factorial of 29
• Factorial of 26
• Factorial of 26