Q: What are the prime factors of the number 163,323,300?

 A: 2, 3, 5, 7, 77773

Why are those the prime factors of the number 163,323,300?

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 163,323,300

163,323,300
Factor Arrows
281,661,650
Factor Arrows
240,830,825
Factor Arrows
313,610,275
Factor Arrows
52,722,055
Factor Arrows
5544,411
Factor Arrows
777,773

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, 3, 5, 7, 77773

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 5 x 7 x 77,773 = 163,323,300

This can also be written as 22 x 31 x 52 x 71 x 77,7731 = 163,323,300

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


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