1. Carry out the prime factorization of the number 89,126,694:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
89,126,694 = 2 × 32 × 79 × 233 × 269
89,126,694 is not a prime number but a composite one.
- Prime number: a natural number that is divisible (divided evenly) only by 1 and itself. A prime number has exactly two factors: 1 and the number itself.
- Examples of prime numbers: 2 (factors 1, 2), 3 (factors 1, 3), 5 (factors 1, 5), 7 (factors 1, 7), 11 (factors 1, 11), 13 (factors 1, 13), ...
- Composite number: a natural number that has at least one factor other than 1 and itself. So it is neither a prime number nor 1.
- Examples of composite numbers: 4 (it has 3 factors: 1, 2, 4), 6 (it has 4 factors: 1, 2, 3, 6), 8 (it has 4 factors: 1, 2, 4, 8), 9 (it has 3 factors: 1, 3, 9), 10 (it has 4 factors: 1, 2, 5, 10), 12 (it has 6 factors: 1, 2, 3, 4, 6, 12), ...
How to count the number of factors of a number?
- If a number N is prime factorized as:
N = am × bk × cz
where a, b, c are the prime factors and m, k, z are their exponents, natural numbers, .... - ...
- Then the number of factors of the number N can be calculated as:
n = (m + 1) × (k + 1) × (z + 1) - ...
- In our case, the number of factors is calculated as:
- n = (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 89,126,694
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- Also consider the exponents of these prime factors.
- Also add 1 to the list of factors (divisors). All the numbers are divisible by 1.
All the factors (divisors) are listed below - in ascending order
The list of factors (divisors):
Numbers other than 1 that are not prime factors are composite factors (divisors).
neither prime nor composite =
1
prime factor =
2
prime factor =
3
2 × 3 =
6
3
2 =
9
2 × 3
2 =
18
prime factor =
79
2 × 79 =
158
prime factor =
233
3 × 79 =
237
prime factor =
269
2 × 233 =
466
2 × 3 × 79 =
474
2 × 269 =
538
3 × 233 =
699
3
2 × 79 =
711
3 × 269 =
807
2 × 3 × 233 =
1,398
2 × 3
2 × 79 =
1,422
2 × 3 × 269 =
1,614
3
2 × 233 =
2,097
3
2 × 269 =
2,421
2 × 3
2 × 233 =
4,194
2 × 3
2 × 269 =
4,842
This list continues below...