Factors of 45 in pairs

Factors are pairs of numbers which, if multiplied together, give the original number.

The number 45 is a composite number. So, 45 has more than one factor pair.

These are all the factor pairs of 45:

• 1,45
• 3,15
• 5,9

Here is how to find the factor pairs for the number 45:

• 45 divided by 1 is 45. So, (1, 45) is a factor pair of 45
• 45 divided by 3 is 15. So, (3, 15) is a factor pair of 45
• 45 divided by 5 is 9. So, (5, 9) is a factor pair of 45

Factor pairs of 45 that ads up to a number:

• The factors of 45 that adds up to 46 are 1 and 45
• The factors of 45 that adds up to 48 are 3 and 15
• The factors of 45 that adds up to 50 are 5 and 9

Note 1: if we change the order of all pairs above, we can double the number of pairs. We choose not to show them.
Note 2: do not confuse these pairs with prime factors. See below some info:

The factorization or decomposition of 45 is 3²•5.

The prime factors of 45 are 3 and 5. It is the list of the integer's prime factors.