[New-bugs-announce] [issue39738] mod operation with large number is not correct.

[wjzbf]

New submission from wjzbf <hgkdzbf6 at 163.com>:

hello python,

  when i calculate:

151476660579404160000-151476660579404160000//1000000007 * (1e9+7)

  it returns 

67534848.0

  when i calculate 

151476660579404160000 % (1e9+7)

  it returns 

67536199.0

  the two values are not equal.
  how to explain it?

thanks
zbf

----------
components: Windows
messages: 362574
nosy: paul.moore, steve.dower, tim.golden, wjzbf, zach.ware
priority: normal
severity: normal
status: open
title: mod operation with large number is not correct.
type: behavior
versions: Python 3.6

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39738>
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