Q: What are the prime factors of the number 101,618,300?

 A: 2, 5, 7, 179, 811

Why are those the prime factors of the number 101,618,300?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 101,618,300

101,618,300
Factor Arrows
250,809,150
Factor Arrows
225,404,575
Factor Arrows
55,080,915
Factor Arrows
51,016,183
Factor Arrows
7145,169
Factor Arrows
179811

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 5, 7, 179, 811

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 7 x 179 x 811 = 101,618,300

This can also be written as 22 x 52 x 71 x 1791 x 8111 = 101,618,300

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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