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Greatest Common Divisor (GCD) of 98 and 151

The greatest common divisor (GCD) of 98 and 151 is 1.

What is the Greatest Common Divisor (GCD)?

The GCD of two integers is the largest positive integer that divides both numbers without leaving a remainder. It is useful in simplifying fractions, finding common factors, and in number theory.

How to Calculate the GCD of 98 and 151?

We use the Euclidean algorithm, which involves the following steps:

  1. Divide the larger number by the smaller number.
  2. Replace the larger number with the smaller number and the smaller number with the remainder from the division.
  3. Repeat this process until the remainder is zero.
  4. The non-zero remainder just before zero is the GCD.

Step-by-Step Euclidean Algorithm

StepCalculation
1 98 ÷ 151 = 0 remainder 98
2 151 ÷ 98 = 1 remainder 53
3 98 ÷ 53 = 1 remainder 45
4 53 ÷ 45 = 1 remainder 8
5 45 ÷ 8 = 5 remainder 5
6 8 ÷ 5 = 1 remainder 3
7 5 ÷ 3 = 1 remainder 2
8 3 ÷ 2 = 1 remainder 1
9 2 ÷ 1 = 2 remainder 0

Examples of GCD Calculations

NumbersGCD
164 and 502
185 and 1005
58 and 722
182 and 1202
27 and 1473

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