To find all the divisors of the number 954,380:
- 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 954,380:
The prime factorization of a number: finding the prime numbers that multiply together to make that number.
954,380 = 22 × 5 × 7 × 17 × 401
954,380 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 = (2 + 1) × (1 + 1) × (1 + 1) × (1 + 1) × (1 + 1) = 3 × 2 × 2 × 2 × 2 = 48
But to actually calculate the factors, see below...
2. Multiply the prime factors of the number 954,380
- 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
composite factor = 2
2 =
4
prime factor =
5
prime factor =
7
composite factor = 2 × 5 =
10
composite factor = 2 × 7 =
14
prime factor =
17
composite factor = 2
2 × 5 =
20
composite factor = 2
2 × 7 =
28
composite factor = 2 × 17 =
34
composite factor = 5 × 7 =
35
composite factor = 2
2 × 17 =
68
composite factor = 2 × 5 × 7 =
70
composite factor = 5 × 17 =
85
composite factor = 7 × 17 =
119
composite factor = 2
2 × 5 × 7 =
140
composite factor = 2 × 5 × 17 =
170
composite factor = 2 × 7 × 17 =
238
composite factor = 2
2 × 5 × 17 =
340
prime factor =
401
composite factor = 2
2 × 7 × 17 =
476
composite factor = 5 × 7 × 17 =
595
composite factor = 2 × 401 =
802
This list continues below...
... This list continues from above
composite factor = 2 × 5 × 7 × 17 =
1,190
composite factor = 2
2 × 401 =
1,604
composite factor = 5 × 401 =
2,005
composite factor = 2
2 × 5 × 7 × 17 =
2,380
composite factor = 7 × 401 =
2,807
composite factor = 2 × 5 × 401 =
4,010
composite factor = 2 × 7 × 401 =
5,614
composite factor = 17 × 401 =
6,817
composite factor = 2
2 × 5 × 401 =
8,020
composite factor = 2
2 × 7 × 401 =
11,228
composite factor = 2 × 17 × 401 =
13,634
composite factor = 5 × 7 × 401 =
14,035
composite factor = 2
2 × 17 × 401 =
27,268
composite factor = 2 × 5 × 7 × 401 =
28,070
composite factor = 5 × 17 × 401 =
34,085
composite factor = 7 × 17 × 401 =
47,719
composite factor = 2
2 × 5 × 7 × 401 =
56,140
composite factor = 2 × 5 × 17 × 401 =
68,170
composite factor = 2 × 7 × 17 × 401 =
95,438
composite factor = 2
2 × 5 × 17 × 401 =
136,340
composite factor = 2
2 × 7 × 17 × 401 =
190,876
composite factor = 5 × 7 × 17 × 401 =
238,595
composite factor = 2 × 5 × 7 × 17 × 401 =
477,190
composite factor = 2
2 × 5 × 7 × 17 × 401 =
954,380
48 factors (divisors)
What times what is 954,380?
What number multiplied by what number equals 954,380?
All the combinations of any two natural numbers whose product equals 954,380.
1 × 954,380 = 954,380
2 × 477,190 = 954,380
4 × 238,595 = 954,380
5 × 190,876 = 954,380
7 × 136,340 = 954,380
10 × 95,438 = 954,380
14 × 68,170 = 954,380
17 × 56,140 = 954,380
20 × 47,719 = 954,380
28 × 34,085 = 954,380
34 × 28,070 = 954,380
35 × 27,268 = 954,380
68 × 14,035 = 954,380
70 × 13,634 = 954,380
85 × 11,228 = 954,380
119 × 8,020 = 954,380
140 × 6,817 = 954,380
170 × 5,614 = 954,380
238 × 4,010 = 954,380
340 × 2,807 = 954,380
401 × 2,380 = 954,380
476 × 2,005 = 954,380
595 × 1,604 = 954,380
802 × 1,190 = 954,380
24 unique multiplications The final answer:
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