To find all the divisors of the number 941,130:
- 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 941,130:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
941,130 = 2 × 32 × 5 × 10,457
941,130 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 = (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 2 × 3 × 2 × 2 = 24
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 941,130
- 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
prime factor =
5
composite factor = 2 × 3 =
6
composite factor = 3
2 =
9
composite factor = 2 × 5 =
10
composite factor = 3 × 5 =
15
composite factor = 2 × 3
2 =
18
composite factor = 2 × 3 × 5 =
30
composite factor = 3
2 × 5 =
45
composite factor = 2 × 3
2 × 5 =
90
This list continues below...
... This list continues from above
prime factor =
10,457
composite factor = 2 × 10,457 =
20,914
composite factor = 3 × 10,457 =
31,371
composite factor = 5 × 10,457 =
52,285
composite factor = 2 × 3 × 10,457 =
62,742
composite factor = 3
2 × 10,457 =
94,113
composite factor = 2 × 5 × 10,457 =
104,570
composite factor = 3 × 5 × 10,457 =
156,855
composite factor = 2 × 3
2 × 10,457 =
188,226
composite factor = 2 × 3 × 5 × 10,457 =
313,710
composite factor = 3
2 × 5 × 10,457 =
470,565
composite factor = 2 × 3
2 × 5 × 10,457 =
941,130
24 factors (divisors)
What times what is 941,130?
What number multiplied by what number equals 941,130?
All the combinations of any two natural numbers whose product equals 941,130.
1 × 941,130 = 941,130
2 × 470,565 = 941,130
3 × 313,710 = 941,130
5 × 188,226 = 941,130
6 × 156,855 = 941,130
9 × 104,570 = 941,130
10 × 94,113 = 941,130
15 × 62,742 = 941,130
18 × 52,285 = 941,130
30 × 31,371 = 941,130
45 × 20,914 = 941,130
90 × 10,457 = 941,130
12 unique multiplications The final answer:
(scroll down)