To find all the divisors of the number 70,296:
- 1. Decompose the number into prime factors.
- See how you can find out how many factors (divisors) the number has, without actually calculating them.
- 2. Multiply the prime factors in all their unique combinations, that yield different results.
1. Carry out the prime factorization of the number 70,296:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
70,296 = 23 × 3 × 29 × 101
70,296 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?
Without actually finding the factors
- 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 = (3 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 4 × 2 × 2 × 2 = 32
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 70,296
- 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
composite factor = 2
2 =
4
composite factor = 2 × 3 =
6
composite factor = 2
3 =
8
composite factor = 2
2 × 3 =
12
composite factor = 2
3 × 3 =
24
prime factor =
29
composite factor = 2 × 29 =
58
composite factor = 3 × 29 =
87
prime factor =
101
composite factor = 2
2 × 29 =
116
composite factor = 2 × 3 × 29 =
174
composite factor = 2 × 101 =
202
composite factor = 2
3 × 29 =
232
This list continues below...
... This list continues from above
composite factor = 3 × 101 =
303
composite factor = 2
2 × 3 × 29 =
348
composite factor = 2
2 × 101 =
404
composite factor = 2 × 3 × 101 =
606
composite factor = 2
3 × 3 × 29 =
696
composite factor = 2
3 × 101 =
808
composite factor = 2
2 × 3 × 101 =
1,212
composite factor = 2
3 × 3 × 101 =
2,424
composite factor = 29 × 101 =
2,929
composite factor = 2 × 29 × 101 =
5,858
composite factor = 3 × 29 × 101 =
8,787
composite factor = 2
2 × 29 × 101 =
11,716
composite factor = 2 × 3 × 29 × 101 =
17,574
composite factor = 2
3 × 29 × 101 =
23,432
composite factor = 2
2 × 3 × 29 × 101 =
35,148
composite factor = 2
3 × 3 × 29 × 101 =
70,296
32 factors (divisors)
What times what is 70,296?
What number multiplied by what number equals 70,296?
All the combinations of any two natural numbers whose product equals 70,296.
1 × 70,296 = 70,296
2 × 35,148 = 70,296
3 × 23,432 = 70,296
4 × 17,574 = 70,296
6 × 11,716 = 70,296
8 × 8,787 = 70,296
12 × 5,858 = 70,296
24 × 2,929 = 70,296
29 × 2,424 = 70,296
58 × 1,212 = 70,296
87 × 808 = 70,296
101 × 696 = 70,296
116 × 606 = 70,296
174 × 404 = 70,296
202 × 348 = 70,296
232 × 303 = 70,296
16 unique multiplications The final answer:
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