ARITHMETIC READINESS Greatest common factor of 2 numbers Find the greatest common factor of 21 and 49 .

Question

asked Nov 1, 2024 156k views

2 Answers

Alexei Levenkov · Answer 1 · 2024-11-03T07:10:50+0000

Hello :)

Step-by-step explanation -

Our task is to find the greatest common factor of 21 and 49.

In order to find the greatest common factor (GCF) of 21 and 49, we can start by listing out the factors of each of these numbers:

21 = 1, 3, 7, 21

49 = 1, 7, 49

Then, select the greatest number that appears in both lists. That number is 7.

Therefore, the GCF is 7.