To find all the divisors of the number 435,435:
- 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 435,435:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
435,435 = 3 × 5 × 7 × 11 × 13 × 29
435,435 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) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 2 × 2 × 2 × 2 × 2 × 2 = 64
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 435,435
- Multiply the prime factors involved in the prime factorization of the number in all their unique combinations, that give different results.
- 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 =
3
prime factor =
5
prime factor =
7
prime factor =
11
prime factor =
13
composite factor = 3 × 5 =
15
composite factor = 3 × 7 =
21
prime factor =
29
composite factor = 3 × 11 =
33
composite factor = 5 × 7 =
35
composite factor = 3 × 13 =
39
composite factor = 5 × 11 =
55
composite factor = 5 × 13 =
65
composite factor = 7 × 11 =
77
composite factor = 3 × 29 =
87
composite factor = 7 × 13 =
91
composite factor = 3 × 5 × 7 =
105
composite factor = 11 × 13 =
143
composite factor = 5 × 29 =
145
composite factor = 3 × 5 × 11 =
165
composite factor = 3 × 5 × 13 =
195
composite factor = 7 × 29 =
203
composite factor = 3 × 7 × 11 =
231
composite factor = 3 × 7 × 13 =
273
composite factor = 11 × 29 =
319
composite factor = 13 × 29 =
377
composite factor = 5 × 7 × 11 =
385
composite factor = 3 × 11 × 13 =
429
composite factor = 3 × 5 × 29 =
435
composite factor = 5 × 7 × 13 =
455
composite factor = 3 × 7 × 29 =
609
This list continues below...
... This list continues from above
composite factor = 5 × 11 × 13 =
715
composite factor = 3 × 11 × 29 =
957
composite factor = 7 × 11 × 13 =
1,001
composite factor = 5 × 7 × 29 =
1,015
composite factor = 3 × 13 × 29 =
1,131
composite factor = 3 × 5 × 7 × 11 =
1,155
composite factor = 3 × 5 × 7 × 13 =
1,365
composite factor = 5 × 11 × 29 =
1,595
composite factor = 5 × 13 × 29 =
1,885
composite factor = 3 × 5 × 11 × 13 =
2,145
composite factor = 7 × 11 × 29 =
2,233
composite factor = 7 × 13 × 29 =
2,639
composite factor = 3 × 7 × 11 × 13 =
3,003
composite factor = 3 × 5 × 7 × 29 =
3,045
composite factor = 11 × 13 × 29 =
4,147
composite factor = 3 × 5 × 11 × 29 =
4,785
composite factor = 5 × 7 × 11 × 13 =
5,005
composite factor = 3 × 5 × 13 × 29 =
5,655
composite factor = 3 × 7 × 11 × 29 =
6,699
composite factor = 3 × 7 × 13 × 29 =
7,917
composite factor = 5 × 7 × 11 × 29 =
11,165
composite factor = 3 × 11 × 13 × 29 =
12,441
composite factor = 5 × 7 × 13 × 29 =
13,195
composite factor = 3 × 5 × 7 × 11 × 13 =
15,015
composite factor = 5 × 11 × 13 × 29 =
20,735
composite factor = 7 × 11 × 13 × 29 =
29,029
composite factor = 3 × 5 × 7 × 11 × 29 =
33,495
composite factor = 3 × 5 × 7 × 13 × 29 =
39,585
composite factor = 3 × 5 × 11 × 13 × 29 =
62,205
composite factor = 3 × 7 × 11 × 13 × 29 =
87,087
composite factor = 5 × 7 × 11 × 13 × 29 =
145,145
composite factor = 3 × 5 × 7 × 11 × 13 × 29 =
435,435
64 factors (divisors)
What times what is 435,435?
What number multiplied by what number equals 435,435?
All the combinations of any two natural numbers whose product equals 435,435.
1 × 435,435 = 435,435
3 × 145,145 = 435,435
5 × 87,087 = 435,435
7 × 62,205 = 435,435
11 × 39,585 = 435,435
13 × 33,495 = 435,435
15 × 29,029 = 435,435
21 × 20,735 = 435,435
29 × 15,015 = 435,435
33 × 13,195 = 435,435
35 × 12,441 = 435,435
39 × 11,165 = 435,435
55 × 7,917 = 435,435
65 × 6,699 = 435,435
77 × 5,655 = 435,435
87 × 5,005 = 435,435
91 × 4,785 = 435,435
105 × 4,147 = 435,435
143 × 3,045 = 435,435
145 × 3,003 = 435,435
165 × 2,639 = 435,435
195 × 2,233 = 435,435
203 × 2,145 = 435,435
231 × 1,885 = 435,435
273 × 1,595 = 435,435
319 × 1,365 = 435,435
377 × 1,155 = 435,435
385 × 1,131 = 435,435
429 × 1,015 = 435,435
435 × 1,001 = 435,435
455 × 957 = 435,435
609 × 715 = 435,435
32 unique multiplications The final answer:
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